Metrology Re: The walls are melting again...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: davep-at-quik-dot-com 


 >  > there's no way in h*** it's going to be drawing a steady
 >  > 38 amps on a 15 amp circuit.
     Assuming this includes a 15A breaker....
      ??

 >  > ...especially when all the combined loads should be no
 >  > more than 10, and none of the wires are even close to
 >  > being warm.
     Meters can be fooled a number of ways.  In a coiling
     environment, the high stray EMI field can get into
     the analog, or digital bits (or boith...)  and drive the
     readings away froim reality.  These effects are difficult,
     if not impossible to spec/predict.

     Separately, the waveform may be distorted enough from
     'whatever' the meter is calibrated on that _that_
     effect is leading to funny readings.

     (I'm assuming the 'peak hold' function, if present on
     the meter, is off???)

     best
      dwp